Opus 5.5 is 20% cheaper per input and output token than Opus 5, and 60% cheaper on cache reads. So what does that actually do to the cost of a task in Claude Code? We ran the numbers, and built a calculator so you can run yours from /usage: claude.dev/blog/what-a-task-…

What a task costs on Opus 5.5 / claude.dev Blog

The same token price can cost very different amounts per task. Learn what Claude Code tasks cost on Opus 5.5 and which settings change the bill.

claude.dev

Sep 25, 2026 · 6:13 PM UTC

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Replying to @ClaudeDevs
It's great so far please do not nerf or fuck this up.
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Replying to @ClaudeDevs
Great calculator for understanding real world coding costs
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Replying to @ClaudeDevs
We talking ultracode, Max…?
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Replying to @ClaudeDevs
Don't you guys dare nerf it.
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Replying to @ClaudeDevs
I love Opus 5.5
Izzy
@israelfemiojo
Sep 25
How a WhatsApp message travels in under a second. Built it and animated it with Opus 5.5.
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Replying to @ClaudeDevs
please dont
Bren
@BrenBuilds
Sep 24
"X sentiment scores for Opus 5.5 are above 0.9. Nerf the model."
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Replying to @ClaudeDevs
?
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Replying to @ClaudeDevs
All this is fine just don’t nerf it up. No kidding. Don’t nerf it up. I repeat don’t nerf it up.
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Replying to @ClaudeDevs
This is the first model ever that I have absolutely no complaints or even suggestions for. Incredibly amazing. Just don't nerf it up please.
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Replying to @ClaudeDevs
Yo, we all love Opus 5.5 This release will be marked in history… and so will the day if you choose to nerf it
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Replying to @ClaudeDevs
I've been a hater but have to admit y'all cooked with Opus 5.5 Upgrading my Claude sub & downgrading my gpt sub Keep cooking and I'll end up getting rid of my openai sub and I'll be fully on team Anthropic/Spacex
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Replying to @ClaudeDevs
Thanks for sharing the great article. Especially the interactive elements of the article was really helpful to visualize the comparative analysis and how it could affect the usage and the results of using Opus 5.5. Keep it up.
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Replying to @ClaudeDevs
So you can release a better yet cheaper model The only thing needed was competition
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Replying to @ClaudeDevs
I can see the difference which is pretty noticeable!
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Replying to @ClaudeDevs
Incredible work with 5.5! Please don’t change a thing with it 🙏🏻
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Replying to @ClaudeDevs
I don't need a calculator to know the answer: It costs 0. 😅 (at least that's what if feels right now - PLEEEAASE don't ever change that!! 🙏)
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Replying to @ClaudeDevs
the calculator showing me i've been spending way more on input tokens than i thought
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Replying to @ClaudeDevs
who needs a calculator, run the task twice and you already know which one's cheaper
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Replying to @ClaudeDevs
@grok what does this article say re subscription accounts? What’s the rough ‘extra usage’ subscription accounts can expect to see, if any?
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Replying to @ClaudeDevs
I think this understates how much cheaper 5.5 is over 5. It seems more token efficient on top of being cheaper per token.
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Replying to @ClaudeDevs
Whatever you guys have done is the best thing after Opus 4.8 and don't nerf it at all please!
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Replying to @ClaudeDevs
Ficou tão mais barato que agora meu plano acabou dias antes do reset pela primeira vez. Se continuar assim, foi dizer adeus e vou pro Codex.
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Replying to @ClaudeDevs
So when are guys gonna nerf opus 5.5 just like fable?
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Replying to @ClaudeDevs
20 percent cheaper tokens and 100 percent more expensive excuses for not shipping
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Replying to @ClaudeDevs
What you guys did with Opus 5.5 is amazing, much more efficient, and costs reduced about 30% for me, maybe more, since this week I used it more than usually did with Opus 5. The shorter and clearer responses are one of the best upgrades comparing to Opus 5. Nice job!
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Replying to @ClaudeDevs
20% cheaper, 200% chattier — the cow gives less milk and more moo, and you pay for both.
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Replying to @ClaudeDevs
It's nurfed already. Stay away from Anthropic.
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Replying to @ClaudeDevs
It was amazing the first few days when it was released, now its not the same at all, they did some nerfing for sure...
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Replying to @ClaudeDevs
🙏🙏🙏
Jonny Jelinek 🔥
@JonnyJelinek
Sep 26
Not hitting usage limits no matter what I do is the biggest gift I've ever received on a 20$ AI plan. PLEEEAASE claude, don't ever take that away from me again!! 🙏🥹
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Replying to @ClaudeDevs
Hey, can you tell me why my session usage is running out quickly? I am using a guest pass. But afaik guest pass doesnt have lower limits right? I want to know if theres something wrong with my account or the limits are nerfed on newer accounts before I fully commit
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Replying to @ClaudeDevs
This is so useful—a calculator straight from /usage!
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Replying to @ClaudeDevs
Just switched from codex. Absolutely amazing. Can’t wait to switch back to codex when you inevitably enshittify Opus 5.5
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Replying to @ClaudeDevs
Oh so THAT's why I've barely touched my weekly limit since 5.5
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Replying to @ClaudeDevs
60% cheaper on cache??
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Replying to @ClaudeDevs
Now , no one will stop me from building my own GTA- 6
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